Gearing.



Ri ROSNER.

GEARING.

APPLICATION FILED DBO. 21, 1909.

985,941, Patented Man?, 1911.

3 SHEETS-SHEET 2.

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R. ROSNER.

GBARING.

APPLICATION FILED DB0. 27, 1909.

3 SHEETS-SHEET 3.

Wfl/immo@ /V/zw@ Patented Mar. 7, 1911.4

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RUDOLF ROSNER, OF MADISON, WISCONSIN.

GEARING'.

oeaaai.

Z'o all whom it may concern.'

Be it known that I, RUDOLF RosNnR, a citizen of Austria, residing at Madison, in the county of Dane and State of ldfisconsin, have invented certain new and useful Improvements in Gearing, of which the following is a specification.

My invention relates to gearing adapted to be employed in connection with a lath-e.

My invention consists generally in the arrangement and combination of parts hereinafter to be described.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a front view of the gearing and a lathe and grinding attachment to which the same is applied, parts of the lathe being broken away. Fig. 2 is a side view of the gearing and lathe, a portion of the lathe being broken away. Fig. 3 is a vertical longitudinal sectional view through pulleys employed in the gearing. Fig. 4 is an enlarged end view of the collar upon which one of the pulleys in Fig. 3 is mounted. Fig. 5 is a vertical cross sectional view through a bearing employed in the gearing. Fig. 6 is a vertical cross sectional view through the frame for supporting the grinding stone. Fig. 7 is a side view of the supporting frame for the grinder. Fig. 8 is an enlarged fragmentary detail view of the lever and associated members for actuating a shifting rod.

ln the drawings wherein a preferred embodiment of my invention is illustrated, 1 designates a lathe of the ordinary construction and comprising a body portion 2 supported by legs 3. Upon the body portion 2 of the lathe and at one end thereof is arranged a bracket carrying a step pulley 6. The step pulley 6 is employed to rotate a device 7 for rigidly holding one end of a piece of work 8, the opposite end of which is rotatably supported by a device 9. The lathe 1 further comprises a platform 10 which is mounted upon the body portion 2 and capable of moving longitudinally upon the same. Upon the movable platform 10 is arranged a tool (not shown) or a grinding attachment as illustrated in Fig. 1. It is to be understood that the platform 10 is moved longitudinally of the body portion 2 by feed mechanism actuated by the pulley 6. The

Specification of Letters Patent.

Application filed December 27, 1909.

Patented Mar. 7, 1911.

serial No. 534,959.

above description is very broad but it is thought to be sufficient for it is to be understood that the lathe 1 comprises no portion of the invention but is used to show the application of the device for operating the same.

The gearing for operating the lathe is mounted upon a support comprising a rectangular body portion 11 supported at its ends by legs 12, which are connected by a strip of material 18. The legs 12 are connected upon one side of the body portion 11 by a strip 14, which is suitably secured to the lathe 1, thus binding the body portion 11 and the lathe together.

As shown in Figs. 1 and 2 the lathe is arranged in front of the body portion 11. The legs 12 upon the opposite side of the body portion 11 are connected by horizontally arranged spaced strips 15, to which are connected vertically disposed spaced strips 16. Upon the vertical strips 16 is rigidly mounted a suitable form of motor 17 comprising a rotary shaft 18. The shaft 18 eX- tends laterally beyond the vertical strips 16 and is provided with a pulley 19 keyed to said shaft as at 20. The shaft 18 is further provided with a hollow pulley 21 which is rigidly secured to the shaft 18 by any suitable means. The hollow pulley 21 is substantially cup-shape and has its outer -end beveled as at 22. One of the legs 12 is provided with a fiXed arm 23 which supports a bracket 24 within which is arranged a shaft 25. The shaft 25 is in axial alinement with the shaft 18 and the shaft 25 has its free end terminating at a point near the free end of the sha-ft 18. Upon the shaft 25 is loosely mounted a collar 26 provided with flanged ends 27. The collar 26 is capable of moving longitudinally upon the shaft 25 and is prevented from rotating upon the same by means of a pin 28 which is radially disposed through the collar 26 and provided upon its inner end with a rotatable Wheel 29 disposed within a longitudinally arranged groove 30 formed in the shaft 25. By reference to Fig. 4 it is obvious that the shaft 25 is substantially smaller in circumference than the aXial opening of the collar 26. rlhe flanged ends 27 of the collar 26 are provided with grooves 31 which are at right angles to each other. Each of the flanged ends 27 is provided with diametrically argrooves ranged and radially disposed openings 32 for the reception of wheels 33 provided with axles 34 which are arranged within the 31. The axles 34 are rotatably mounted within the grooves 31 and are held therein by means of segmental plates 35 which are secured to each of the flanged ends 27 by means of screws 36 or the like. By the construction above described the collar 26 may be moved longitudinally of the shaft 25 with great ease. Rotatably mounted upon the collar 26 and between the flanged ends 27 is a hollow pulley 37 having one end thereof beveled as at 38 and adapted to t within the beveled end 22 of the pulley 21. Vhen the pulley 37 is urged into engagement with the pulley 21, its beveled end 38 will frictionally engage the beveled end 22 of the pulley 21 and said pulley 37 will accordingly be rotated by the pulley 21.

U pon the rear edge of the body portion 11 of the support and near the ends thereof arc arranged vertical supports 397 which may preferably be formed of pipes. Upon the vertical supports 39 near the upper ends thereof are arranged brackets 40 which surround the supports 39 and are rigidly connected thereto. rThe brackets 40 are connected to the body portion 11 by means of brace rods 41 and 42. The brace rods 41 are in turn connected by a rod 43. Within the upper end of each of the supports 39. which as before stated may be formed of pip. rotatably mounted a spindle 44 provided with a shoulder 45 from which extend arms 46. Screws 47 are tapped through the upper portion of the arms 46 and are provided upon their inner ends with cylindrical reduced ends 48 which pivotally support an oil casing 49. The oil casing 49 is provided with a circular opening 50 for the reception of one end of a rotary shaft 51. The opening 50 communicates with a cylindrical bearing 52 within which the shaft 51 is arranged. The bearing 52 is provided with an opening 53, and a ring 54 is loosely mounted upon the shaft 51 and disposed within said opening 53. The function of the ring 54 is to supply oil from the lower portion of the oil casing 49 to the upper portion of the shaft 51. 1t is to be understood that both ends of the shaft 51 are similarly mounted upon the supports 39 and that the ends of said shafts are capable of moving in horizontal and vertical planes. The object in having the ends of the shaft 51 mounted in the manner above described. is to allow said ends to move if the shaft 51 should be buckled or temporarily bent by the erks and strains to which the same will naturally be subjected. Upon the rotary shaft 51 in if'ertical alinement with the pulley 19, are mounted pulleys 55 and 56. The pulley 55 is rigidly connected to the shaft 51 while the pulley 56 is 4free to rotate thereon. A belt 57 is trained about pulley 19 and the pulley 55, and said belt 57 may be shifted upon the idle pulley 56 by means of a device hereinafter to be described.

rEhe brackets 40 arranged upon the supports 39 are connected by rods 58 which are rigidly secured thereto and upon which is fixed a plate 59. A shifting rod 60 is longitudinally movably mounted upon the brackets 40 and disposed between the connecting rods 58. The shifting rod 60 is provided with spaced tines 61 which are rigidly secured to said shifting rod 6() and between which the belt 57 operates. A coil spring' 62 is mounted upon the shifting rod 60 and compressed between one of the tines 61 and the bracket 40. 1t is to be understood that when the shifting rod 60 is free to move longitudinally that the spring 62 will move the same so as to shift the belt 'V 7 from the fixed pulley to the idle pulley 56. lpon the plate 59 above referred to is pivotally mounten a bell-crank lever 63, one end of which is pivotally connected by means of a rod 64 to the shifting rod 60. The opposite arm of the bell-crank lever is connected to one end of a cable 65 which extends downwardly and passes through an opening in the body portion 11. rThe lower end of the cable 65 is connected to the free end of a lever 66, the opposite end of which is pivotally connected to a rod 67 which in turn has its ends rigidly connected to the legs 12. Adjacent the lever 66 is arranged an operating lever 68, one end of which is loosely mounted upon al fixed rod 69 and the opposite or free end of which is provided with a handle portio-n 70 which is arranged forwardly of the body portion 11 and below the body portion of the lathe. The lever 66 is provided with a fixed pin 71 which is disposed within a longitudinal opening 72 formed upon the operating lever 68.

From the construction so far described it is obvious that whenthe operating lever 68 is oscillated downwardly the same will oscillate lever 66 downwardly, by virtue of the iixed pin 71 sliding within the slot 72, and bell-crank lever 63 will be oscillated whereby shifting rod 60 will be moved in the direction of the arrow and the belt 57 shifted fr ni the idle pulley 56 to the fixed pulley 55. 1n order that the spring 62 may not return the shifting rod 60 to its normal position and accordingly shift the belt 57 back to the loose pulley 56, 1 provide a latch 73 having a shoulder 74 below which the operating lever 68 is disposed and prevented from swinging upwardly. lheu the lever 68 is moved laterally so that the same clears the shoulder 74 it is obvious that the same will be free to swing upwardly by the action exerted by the spring 62. The shaft 51 is further provided with a step pulley which is rigidly mounted upon said shaft and in vertical alinement with the step pulley 6 of the lathe 1. It is to be understood that a belt is to be trained about the step pulley 75 and the step pulley 6 in vertical alinement therewith.

Upon the vertical supports 39 near and above the brackets 40 are arranged brackets 7G, which are rigidly secured to said supports 39. Upon the brackets 76 is rotatably mounted. a shaft 77, and said shaft 77 is mounted in a like manner to the Way in which the shaft 51 is mounted, and therefore for the sake of brevity l will not describe the same again.

Rigidly mounted upon the shaft 77 is a pulley 78 which is in vertical alinement with the pulleys 21 and 37. A belt 79 is trained about the pulley 78 and the pulley 377 said belt running between the spaced teeth 8O formed upon one end of a shifting lever 81 which is pivotally mounted upon a transverse rod 82 fixed upon the body portion 11. rlhe shifting lever 81 extends through a suitable opening in the body portion 1 and is provided at its free end with a handle portion 83. When it is desired to shift the belt 79 from the pulley 37 to the pulley 21, the handle portion 83 of the shifting lever is moved to the right in the direction of the arrow which will move the belt toward said pulley 21. This belt is now not being driven as its pulleys are not revolving and it will accordingly move the pulley 37 longitudinally of the shaft 21 until `the same frictionally engages the rotary pulley 21. This engagement causes the rotation of the pulley 37 and the belt is thus set in motion and may be easily conducted upon the pulley 21 by further movement of the lever 38 in the same direction. The shaft 77 is provided near its center with a fixed grooved pulley 84 about which is trained a cable 85 or the like which is in the form of an endless belt and passes about grooved pulleys 86 and 87 which are rotatably mounted in yokes 89, which in turn are pivotally mounted upon a bracket 90 rigidly mounted upon the connecting rod 43. rlhe endless belt 85 extends forwardly and is trained about grooved pulleys 91 which are rotatably mounted within yoles 92, which in turn are pivotally mounted upon a transversely arranged section 93 formed upon a supporting frame 94. The pulleys 91 are in alinement with each other and guide the endless belt 85 so that the same may be trained about a grooved pulley 95. The frame 94 comprises upstanding sides 96 which are connected with a transverse section 93, and the sides 96 are provided with alined openings 97 for the reception of bushings 98 within which is rotatably mounted the reduced portions of a spindle 99. The spindle 99 is provided with flanges 100 which prevent the longitudinal displacement of the same. The grooved pulley 95 is rigidly mounted upon the central portion of the spindle 99, as clearly illustrated in Fig. 6. The spindle 99 is provided with an axial opening for the reception of a headed pin 101 which is screw threaded at 102l for the reception ofa clamping nut 103. The spindle 99 is provided at its ends with slots 104. rThe headed pin 101 is provided near its head with a laterally projecting lug 105 adapted to lit within either of the slots 104 and thus lock the pin 101 to the spindle 99. A grinding Wheel 106 is mounted upon one end of the spindle adjacent the head of the pin and is clamped between the flange 100 and the head of said pin by tightening the clamping nut 103.

By the construction above described it is obvious that the grinding wheel 100 is rotated by the groove pulley 95.Y It is also obvious that the pin may be reversed within the spindle or that a second grinder may be clamped upon the opposite end of the spindle. The supporting frame 94 is provided with a base 107 which connects the sides 96 and said base 107 is provided with a T- shaped projection 108 which tits within a corresponding opening formed upon the movable platform 10. The base 107 is further secured to the movable platform 10 by means of a bolt 109 which passes through said base and is connected to a device for adjusting said base transversely of said platform.

It is obvious that when the grindingwheel and its associated members are moved longitudinally of the body portion of the lathe and away from the pulley 84 some means must be provided for slackening the endless belt 85 as the distance is increased. The bracket 90 is provided with an upstanding arm 11G upon which is rotatably mounted a horizontally disposed cylindrical shaft 111, upon which are rigidly mounted spaced strips 112. Upon the shaft 111 is rotatably mounted a grooved pulley 113 which is disposed between the strips 112 and about which the endless belt 85 passes. The upper ends of the strips 112 are connected by a tiXed shaft 114 upon which is rotatably mounted a grooved pulley 115 which is also engaged by the endless belt 85. rl`he pulley 115 is urged forwardly against the endless belt 85 by means of a coil spring 116, one end of which is fixed to the shaft 111 and the other end to the upstanding arm 110. As shown in Fig. 2 the endless belt 85 is constructed a little longer than necessary and the slack in the same is taken up by the pulley 115. llfhen the grinder and its associated members are moved farther away from the pulley 84, the endless belt 85 is slackened by said pulley 115 being moved rearwardly.

From the above description it is thought that the operation of my device is obvious and therefore may not be recited.

Having fully described my invention, claim l. In gearing, a plurality of shafts disposed in end to end relation to each other, a pulley rigidly mounted upon one of said shafts, a sleeve splined upon the other shaft, and a pulley rotatably mounted upon said sleeve to engage theirst named pulley.

2. In gearing, a driving shaft, a hollow pulley Xedly mounted upon the same, a shaft arranged near and in end to end relation to the driving shaft, a sleeve mounted upon the last named shaft, said sleeve being provided With a plurality of slots, Wheels rotatably mounted Within said slots to engage said last named shaft, said last named shaft being provided with an axial groove, a Wheel rotatably mounted upon said sleeve and disposed to operate Within said groove,

and a pulley loosely mounted upon said sleeve to engage the lirst named pulley.

3. In gearing, the combination with a movable carriage and a rotary shaft supported by the same, of a driving shaft, a pulley ixedly mounted upon the same, a second shaft arranged near said driving shaft, a sleeve splined upon said second shaft, a second pulley rotatably mounted upon said sleeve to frictionally engage the lirst named pulley, a driven shaft, a third pulley rigidly mounted upon said driven shaft, a belt to cooperate With said pulleys, and connections bet-Ween said driven shaft and rotary shaft.

ln testimony whereof I aiiix my signature in presence of two Witnesses.

RUDOLF ROSNER.

l/Vitnesses Jos. HORALEK, MICHAEL DIEDERICH.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

